Craftsman 917.274980 Owner's Manual page 29

TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM
Loss of power
Excessive
vibration
Engine continues
to run when
operator leaves
seat with
attachment
clutch engaged
CAUSE CORRECTION
Poor cut - uneven
1. Cutting too much grass/too
fast.
2. Throttle in "CHOKE"
position.
3. Build-up of grass, leaves 3.
and trash under mower.
4. Dirty air filter. 4.
5. Low oil level/dirty oil. 5.
6. Faulty spark plug. 6.
7. Dirty fuel filter. 7.
8. Stale or dirty fuel. 8.
9. Water in fuel. 9.
10.Spark plug wire loose.
11 .Dirty engine air screen/fins.
12. Dirty/clogged muffler.
13.Loose or damaged wiring.
14. Carburetor out of
adjustment.
15.Engine valves out of
adjustment.
1. Worn, bent or loose blade.
2. Bent blade mandrel.
3. Loose/damaged part(s).
1. Faulty operator-safety 1.
presence control system.
1. Worn, bent or loose blade. 1.
2. Mower deck not level. 2.
3. Buildup of grass, leaves, 3.
and trash under mower.
4. Bent blade mandrel. 4.
5. Clogged mower deck vent 5.
from build-up of grass,
leaves, and trash around
mandrels.
1. Set in "Higher Cut" position/
reduce speed.
2. Adjust throttle control.
Clean underside of mower
housing.
Clean/replace air filter.
Check oil level/change oil.
Clean and regap or change
spark plug.
Replace fuel filter.
Drain fuel tank and refill
with fresh gasoline.
Drain fuel tank and
carburetor, refill tank with
fresh gasoline and replace
fuel filter.
10.Connect and tighten spark
plug wire.
11.Clean engine air screen/
fins.
12.Clean/replace muffler.
13.Check all wiring.
14. See "To Adjust Carburetor"
in Service and Adjustments
section.
15.Contact a Sears or other
qualified service center.
1. Replace blade.
Tighten blade bolt.
2. Contact a Sears or other
qualified service center.
3. Tighten loose part(s).
Replace damaged parts.
Check wiring, switches and
connections. If not corrected,
contact a Sears or other
qualified service center.
Replace blade. Tighten
blade bolt.
Level mower deck.
Clean underside of mower
housing.
Contact a Sears or other
qualified service center.
Clean around mandrels to
open vent holes.
29